Honeywell Th3110D1008 Wiring Diagram. Web wiring diagram sheets detail: The honeywell th3110d1008 is a digital thermostat. honeywell furnace manual from manualdb123.z21.web.core.windows.net Web read on to find out more about the honeywell thermostat th3110d1008 and its accompanying wiring diagram. Common wire from secondary side of cooling system transformer. Web the diagram shows the path of the […]